Generate a random alphanumeric string

randomID.js

function randomID(size = 6) {
  const possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  let text = '';

  for (let i = 0; i < size; i++) {
    text += possible.charAt(Math.floor(Math.random() * possible.length));
  }

  return text;
}

function uniqueID(size = 10) {
  return [...Array(size)].map(() => (~~(Math.random() * 36)).toString(36)).join('');
}